stun /stʌn/ vt. (stunned;stunning) 1.把…打晕，使眩晕：be stunned by a blow被打晕过去；stun an animal with a club用棍棒把动物打晕 2.使大吃一惊，使不知所措：We were stunned with/by the sudden news.我们被这突然的消息惊呆了。